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Ships within 48 hours · Estimated delivery Oct 23 - Oct 28
GroStar GS1 pH Pen lighting systems kits Perfect for holding one 2' Perfect for holding one 2' x 2' tray even in high humidity so you don’t have to discard the entire pen when the probe reaches its end of life• Large 3 color backlit screen gives you clear information• Durable structure KCL storage solution (10ml bottle)
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